HAAT Calculator & Elevation Finder

Calculate elevation and height above average terrain (HAAT) using the FCC's API.

NAD83 Latitude:
- ' " *

NAD83 Longitude:
- ' " *

Radiation Center Height:
meters   *

- Above Mean Sea Level (RCAMSL)
- Above Ground Level (RCAGL)

Number of Radials:

Terrain Database:

Legacy FCC30 terrain is not available through the FCC API. Use the FCC HAAT Calculator instead.

Station Class for ERP Check: (optional)

Decimal Coordinates:
Latitude: 48.541500
Longitude: -122.296556

Site Elevation:
171.56 meters

Radiation Center Above Mean Sea Level (RCAMSL):
201 meters

Height Above Average Terrain:
41 meters, based on 8 radials.
(rounded from 40.74 m)

HAAT Along Each Radial:

Azimuth HAAT
0-12.57
45-233.59
9075.37
135-34.58
180161.4
225189.07
270190.56
315-9.73